﻿<!DOCTYPE html>
<html>
<head>
<!--
  Copyright (c) 2015-2019 Jean-Marc VIGLINO, 
  released under CeCILL-B (french BSD like) licence: http://www.cecill.info/
-->
  <title>ol-ext: Profile style</title>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  
  <meta name="description" content="Draw profiles on a map with Openlayers." />
  <meta name="keywords" content="ol, openlayers, vector, style, stroke, variable, gpx, profile" />

  <link rel="stylesheet" href="../style.css" />

  <!-- jQuery -->
  <script type="text/javascript" src="https://code.jquery.com/jquery-1.11.0.min.js"></script>
  <!-- FontAwesome -->
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">

  <!-- Openlayers -->
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@latest/ol.css" />
  <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/ol@latest/dist/ol.js"></script>

  
  <!-- ol-ext -->
  <link rel="stylesheet" href="../../dist/ol-ext.css" />
  <script type="text/javascript" src="../../dist/ol-ext.js"></script>
  <!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
  <script src="https://unpkg.com/elm-pep"></script>

  <style>
    .ol-legend {
      background: #fff;
      padding: 2px 1em;
    }
    .ol-legend ul {
      margin-bottom: 12px;
    }
    .ol-legend ul li {
      overflow: visible;
    }
  </style>
</head>
<body >
  <a href="https://github.com/Viglino/ol-ext" class="icss-github-corner"><i></i></a>

  <a href="../../index.html">
    <h1>ol-ext: Profile style</h1>
  </a>
  <div class="info">
    <i>ol/style/Profile</i> is a style to draw line profiles on a map.
  </div>

  <!-- Map div -->
  <div id="map" style="width:600px; height:400px;"></div>

  <div class="options" style="min-width:300px;">
  </div>
  
<script type="text/javascript">
  
	// Layers
	var layer = new ol.layer.Geoportail({
    layer: 'ORTHOIMAGERY.ORTHOPHOTOS'
  });

	// The map
	var map = new ol.Map({
    target: 'map',
    view: new ol.View({
      zoom: 13,
      //center: [740741, 5776642]
      center: [646752, 5407059]
    }),
    layers: [layer]
  });

  // GPX vetor layer
	var source = new ol.source.Vector({
    //url: '../data/192553.gpx',
    url: '../data/2009-09-04_rando.gpx',
    format: new ol.format.GPX()
  });
  var style = ol.style.Style.defaultStyle();
  style.push(new ol.style.Profile({
    stroke: new ol.style.Stroke({ color: [255, 255, 255, .5], width: 1 }),
    fill: new ol.style.Fill({ color: [255, 255, 255, .3] }),
    scale: .2
  }))
	var vector = new ol.layer.Vector({
    source: source,
    style: style
	});
  map.addLayer(vector);
  
  // Profile control
  var profile = new ol.control.Profile({
    target: $('.options').get(0),
    skipFirst: 5
  });
  map.addControl(profile);
  source.once('change',function(e) {
    if (source.getState() === 'ready'){
      profile.setGeometry(source.getFeatures()[0]);
		}
  });

  
	// Show feature profile when loaded
  var pt = new ol.Feature(new ol.geom.Point([0,0]));
  var overlay = new ol.layer.Vector({ source: new ol.source.Vector() });
  overlay.getSource().addFeature(pt);
  overlay.setMap(map);

	source.once('change',function(e) {
    if (source.getState() === 'ready'){
      profile.setGeometry(source.getFeatures()[0]);
		}
  });

  // Show a popup on over
	profile.on(["over","out"], function(e){
    if (!pt) return;
		if (e.type=="over"){
      // Show point at coord
			pt.setGeometry(new ol.geom.Point(e.coord));
			pt.setStyle(style);
		} else {
      // hide point
			pt.setStyle([]);
		}
  });


</script>

</body>
</html>